Password handle

Abstract

The utility model discloses a coded handle, which relates to the technical field of coded locks and comprises a lock control component and an opening and closing component. Four sets of rotating digital scale plates are additionally arranged on a traditional door handle, internal assemblies are controlled through the exteriors of the digital scale plates, the contact state of a telescopic square rod in the handle and a lock body in a door is changed, then the unlocking and locking processes of a door lock are controlled, and the safety coefficient of the door lock is improved; compared with a traditional mechanical door lock, a lock cylinder is eliminated, a door can be opened without a key, and the embarrassment caused by forgetting to carry the key is avoided; for an intelligent lock, charging is not needed, energy is saved, and meanwhile large expenditure is avoided; after-sales service is not needed, four digits can be set independently, use is easy and convenient, the failure rate is low, the safety coefficient is high, performance is stable and reliable, and the possibility that a technical unlocking tool conducts quick unlocking is eradicated.

Description

Technical Field

[0001] This utility model relates to the field of combination lock technology, and in particular to a combination handle. Background Technology

[0002] Currently, most residential security doors with mechanical locks typically have two handles, one inside and one outside, mounted on the center panel on either side of the door. These handles are opened and closed using a matching key. The advantages of mechanical locks are ease of use, low failure rate, low price, and long lifespan. The disadvantages are that they are susceptible to damage from technical lock-picking tools and have a lower security level. Smart locks, on the other hand, usually incorporate fingerprint, facial recognition, and electronic password systems. These products are stylish, keyless, and easy to operate, but they are more expensive and require frequent charging or battery replacements, increasing operating costs. Utility Model Content

[0003] The purpose of this invention is to provide a keyless, purely mechanical combination lock handle.

[0004] To address the aforementioned technical problems, the present invention adopts the following technical solution: a combination lock handle, comprising a lock control assembly and an opening / closing assembly; the lock control assembly includes a door lock handle, a tower spring, and an operation button; the operation button is slidably installed inside the first end of the door lock handle; a tower spring is installed between the operation button and the door lock handle, and the tower spring is sleeved on the operation button; the opening / closing assembly includes a handle shaft, a digital dial, a geared inner control ring, a combination spacer ring, a compression spring, a positioning steel ball, a telescopic square bar, and a locking pin; the first end of the handle shaft is fixedly connected to the first end of the door lock handle; m equidistantly distributed combination spacer rings are fixedly installed on the outer surface of the handle shaft; a geared inner control ring is slidably installed between every two adjacent combination spacer rings; the geared inner control ring is rotatably connected to the handle shaft; a digital dial is slidably installed on each geared inner control ring; n circumferentially distributed variable code grooves are provided inside the digital dial; the outer surface of the geared inner control ring... The handle has n evenly distributed circumferential bosses on its surface; circumferential grooves engage with the bosses; a square bar hole is located inside the handle shaft; a telescopic bar is slidably installed inside the square bar hole; an operation button is inserted into the first end of the telescopic bar, and the operation button and the telescopic bar are connected by a thread; m-1 equally spaced positioning blind holes are located on the upper part of the outer surface of the handle shaft; a compression spring is installed in each positioning blind hole; a positioning steel ball is installed on each compression spring; n evenly distributed circumferential positioning recesses and one locking recess are also located on the inner surface of the inner control ring; the positioning recesses engage with the positioning steel ball; m-1 equally spaced positioning through holes are located on the lower part of the outer surface of the handle shaft; a locking pin is slidably installed in each positioning through hole; m-1 control recesses are located on the telescopic bar; the upper part of the locking pin engages with the control recess; the lower part of the locking pin engages with the locking recess.

[0005] Preferably, the operation buttons are made of plastic; the telescopic bar is made of metal.

[0006] Preferably, the material strength and structural strength of the operation button must meet the requirement that, under gradually increasing pressure on the operation button, the threaded connection between the operation button and the telescopic bar breaks and fails before the locking pin, so as to prevent the operation button from being unlocked by violent impact.

[0007] Preferably, the combined spacer ring consists of an inner spacer ring and an outer spacer ring; the inner spacer ring and the inner control ring of the meshing gear have the same projection shape in the axial direction along the handle's circular shaft; the inner surface shape of the outer spacer ring completely matches the outer surface shape of the inner spacer ring; the outer spacer ring is slidably mounted on the inner spacer ring.

[0008] Preferably, an interference fit is used between the inner spacer ring and the handle shaft.

[0009] Preferably, the first end of the door lock handle is also provided with a concave arc surface for the handle, providing space for the pressing operation of the operation button.

[0010] Preferably, it also includes a lock panel; the second end of the handle shaft is rotatably connected to the lock panel.

[0011] Preferably, the outer surface of the digital dial is provided with n n-ary numbers arranged sequentially from 0 to n-1.

[0012] Preferably, the numerical labels are stickers with embossed, raised, or printed lettering.

[0013] Preferably, a positioning mark is provided on the lock panel; the positioning mark is used to locate the digital code.

[0014] Compared with the prior art, the advantages of this utility model are: (1) Four sets of rotating digital dials are added to the traditional door handle. The external control of the digital dials controls the internal components to change the contact state between the telescopic square bar inside the handle and the lock body inside the door, thereby controlling the opening and closing process of the door lock and improving the safety factor of the door lock; (2) For traditional mechanical door locks, the lock cylinder is eliminated and the key is no longer needed to open the door, avoiding the helplessness and embarrassment of forgetting to bring the key; (3) For smart locks, there is no need to charge, saving energy and avoiding large expenses; (4) No after-sales service is required. The four digits can be set independently, which is easy to use, has a low failure rate, a high safety factor, stable and reliable performance, and eliminates the possibility of rapid unlocking by technical unlocking tools. Attached Figure Description

[0015] Figure 1 This is a side sectional view of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the end section of the overall structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the component structure of the meshing inner control ring of this utility model.

[0018] Figure 4 This is a schematic diagram of the component structure of the combined spacer ring of this utility model.

[0019] Figure 5 This is a schematic diagram of the overall structure of this utility model.

[0020] In the diagram: 1. Door lock handle; 2. Handle shaft; 3. Digital dial; 4. Engaging inner control ring; 5. Combination spacer ring; 6. Positioning recess; 7. Locking recess; 8. Compression spring; 9. Positioning ball; 10. Positioning blind hole; 11. Telescopic square bar; 12. Square bar hole; 13. Control recess; 14. Positioning through hole; 15. Locking pin; 16. Tower spring; 17. Operating button; 18. Handle concave arc surface; 19. Variable code groove; 20. Variable code boss; 21. Positioning mark; 22. Lock panel; 501. Inner spacer ring; 502. Outer spacer ring. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures, and should not be construed as limiting the present utility model. In order to better illustrate the embodiments of this utility model, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] Figures 1 to 5 Preferred embodiments of the present invention are provided.

[0023] like Figure 1 and Figure 2As shown, the operation button 17 is slidably installed inside the first end of the door lock handle 1; a tower-shaped spring 16 is installed between the operation button 17 and the door lock handle 1, and the tower-shaped spring 16 is sleeved on the operation button 17; a handle concave arc surface 18 is also provided inside the first end of the door lock handle 1 to provide space for the pressing operation of the operation button 17; the first end of the handle shaft 2 is fixedly connected to the first end of the door lock handle 1; five equidistantly distributed combination spacer rings 5 ​​are fixedly installed on the outer surface of the handle shaft 2; a geared inner control ring 4 is slidably installed between every two adjacent combination spacer rings 5; the geared inner control ring 4 is rotatably connected to the handle shaft 2; a number of geared inner control rings 4 are slidably installed on each geared inner control ring 4. The dial 3 has 10 evenly distributed circumferential grooves 19 inside; the outer surface of the inner gear ring 4 has 10 evenly distributed circumferential bosses 20; the grooves 19 engage with the bosses 20; the handle shaft 2 has a square rod hole 12 inside; a telescopic rod 11 is slidably installed in the square rod hole 12; the operation button 17 is inserted into the first end of the telescopic rod 11, and the operation button 17 and the telescopic rod 11 are connected by a thread; the upper part of the outer surface of the handle shaft 2 has 4 equidistant positioning blind holes 10; a compression spring 8 is installed in each positioning blind hole 10; a positioning steel ball 9 is installed on each compression spring 8; such as Figure 3 As shown, the inner surface of the inner control ring 4 is also provided with 10 circumferentially distributed positioning recesses 6 and 1 locking recess 7; the positioning recesses 6 are used to engage with the positioning steel balls 9; the lower part of the outer surface of the handle shaft 2 is provided with 4 equidistantly distributed positioning through holes 14; a locking pin 15 is slidably installed in each positioning through hole 14; the telescopic square bar 11 is provided with 4 control recesses 13; the upper part of the locking pin 15 is used to engage with the control recesses 13; the lower part of the locking pin 15 is used to engage with the locking recess 7; the operation button 17 is made of plastic; the telescopic square bar 11 is made of metal; the material strength and structural strength of the operation button 17 must meet the requirement that when the pressing force on the operation button 17 is gradually increased, the threaded connection between the operation button 17 and the telescopic square bar 11 breaks and fails before the locking pin 15, so as to prevent the operation button 17 from being unlocked by violent impact.

[0024] like Figure 4 As shown, the combined spacer 5 consists of an inner spacer 501 and an outer spacer 502; the inner spacer 501 and the inner control ring 4 have the same projection shape along the axial direction of the handle shaft 2; the inner surface shape of the outer spacer 502 completely matches the outer surface shape of the inner spacer 501; the outer spacer 502 is slidably mounted on the inner spacer 501; the inner spacer 501 and the handle shaft 2 are fitted with an interference fit.

[0025] like Figure 5 As shown, the second end of the handle shaft 2 is rotatably connected to the lock panel 22.

[0026] In this embodiment, ten decimal numbers, arranged sequentially from 0 to 9, are provided on the outer surface of the digital dial. The numbers can be in the form of embossed, raised, or printed stickers. In this embodiment, the numbers are in the form of rolled embossed patterns.

[0027] like Figure 5 As shown, a positioning mark 21 is also provided on the lock panel 22; the positioning mark 21 is used to locate the digital mark.

[0028] The working principle of this utility model is as follows: Figure 1 As shown, rotate the digital dial 3 sequentially until all the numbers on the dial are aligned with the positioning mark 21, and the sum of all the numbers matches the preset password. At this point, driven by the digital dial 3, each inner control ring 4 rotates until the locking recess 7 is in position. Figure 1 At the position directly below, under the influence of gravity, all locking pins 15 naturally slide downwards, disengaging from the control recess 13 while maintaining engagement with the locking recess 7, thus entering... Figure 1 In the position of either the rightmost or second-to-left locking pin 15, the telescopic bar 11 is no longer obstructed by the locking pin 15 and can slide relative to the handle shaft 2. Furthermore, when the user holds the door handle 1 and simultaneously presses the operation button 17 with their thumb, the telescopic bar 11 is forced to move along... Figure 1 The door handle 1 moves to the right and is eventually inserted into the square hole of the lock body of the security door. At this time, rotating the door lock handle 1 can realize the opening and locking process of the security door. After each successful opening or locking of the security door, the digital dial 3 needs to be manually interrupted immediately.

[0029] In particular, the configuration of the compression spring 8 and the positioning steel ball 9 ensures the precise hovering of the digital dial 3 in rotational position.

[0030] The principle of password modification in this invention is as follows: To change the password, the user must first remove the password handle from the security door and remove the lock panel 22 before entering. Figure 1 In the state shown, then rotate the current number dial 3 completely to the password position, and then from... Figure 1 On the right side, remove the outer spacer ring 502 and the number dial 3 in sequence, that is, after removing each outer spacer ring 502, remove the adjacent number dial 3. After all the number dials 3 have been removed, starting from the leftmost number dial 3, align the numbers corresponding to the desired digits with the top facing up, and then... Figure 1 Insert from right to left, and fit it onto the inner control ring 4 of the corresponding number. After each number dial 3 is fitted, replace one outer spacer ring 502. Continue until all number dials 3 are replaced, and the password change is achieved. Replace the password handle with the changed password on the security door, and the new password can be used to open and close the security door.

Claims

1. A combination lock handle, comprising a locking component and an opening / closing component, characterized in that: The locking assembly includes a door handle (1), a tower spring (16), and an operating button (17); the operating button (17) is slidably mounted inside the first end of the door handle (1); a tower spring (16) is installed between the operating button (17) and the door handle (1), and the tower spring (16) is sleeved on the operating button (17); the opening and closing assembly includes a handle shaft (2), a digital dial (3), a geared inner control ring (4), a combination spacer ring (5), a compression spring (8), a positioning steel ball (9), a telescopic square bar (11), and a locking pin (15); the handle shaft (2) The first end is fixedly connected to the first end of the door lock handle (1); m equally spaced combination spacers (5) are fixedly installed on the outer surface of the handle shaft (2); a geared inner control ring (4) is slidably installed between every two adjacent combination spacers (5); the geared inner control ring (4) is rotatably connected to the handle shaft (2); a digital dial (3) is slidably installed on each geared inner control ring (4); n circumferentially distributed variable code grooves (19) are provided inside the digital dial; n circumferentially distributed variable code bosses (20) are provided on the outer surface of the geared inner control ring (4); the variable code grooves (19) Used to engage with the variable code boss (20); a square bar hole (12) is provided inside the handle shaft (2); a telescopic square bar (11) is slidably installed in the square bar hole (12); an operation button (17) is inserted into the first end of the telescopic square bar (11), and the operation button (17) and the telescopic square bar (11) are connected by a thread; m-1 equally spaced positioning blind holes (10) are provided on the upper part of the outer surface of the handle shaft (2); a compression spring (8) is installed in each positioning blind hole (10); a positioning steel ball (9) is installed on each compression spring (8); The inner surface of the inner control ring (4) is also provided with n circumferentially distributed positioning recesses (6) and a locking recess (7); the positioning recesses (6) are used to engage with the positioning steel ball (9); the lower part of the outer surface of the handle shaft (2) is provided with m-1 equidistantly distributed positioning through holes (14); a locking pin (15) is slidably installed in each positioning through hole (14); the telescopic square bar (11) is provided with m-1 control recesses (13); the upper part of the locking pin (15) is used to engage with the control recess (13); the lower part of the locking pin (15) is used to engage with the locking recess (7).

2. A combination lock handle as described in claim 1, characterized in that: The operation button (17) is made of plastic; the telescopic square bar (11) is made of metal.

3. A combination lock handle as described in claim 2, characterized in that: The material strength and structural strength of the operation button (17) must meet the requirement that when the pressing force on the operation button (17) is gradually increased, the threaded connection between the operation button (17) and the telescopic square bar (11) will break and fail before the locking pin (15) to prevent the operation button (17) from being unlocked by violent impact.

4. A combination lock handle as described in claim 3, characterized in that: The combined spacer (5) consists of an inner spacer (501) and an outer spacer (502); the inner spacer (501) has the same projection shape as the inner control ring (4) along the axial direction of the handle shaft (2); the inner surface shape of the outer spacer (502) is completely fitted with the outer surface shape of the inner spacer (501); the outer spacer (502) is slidably mounted on the inner spacer (501).

5. A combination lock handle as described in claim 4, characterized in that: An interference fit is used between the inner spacer ring (501) and the handle shaft (2).

6. A combination lock handle as described in claim 5, characterized in that: The first end of the door lock handle (1) is also provided with a handle concave arc surface (18) to provide space for the pressing operation of the operation button (17).

7. A combination lock handle as described in any one of claims 1-6, characterized in that: It also includes a lock panel (22); the second end of the handle shaft (2) is rotatably connected to the lock panel (22).

8. A combination lock handle as described in claim 7, characterized in that: The outer surface of the digital dial is marked with n n-ary numbers arranged sequentially from 0 to n-1.

9. A combination lock handle as described in claim 8, characterized in that: Numerical labels are printed on stickers with embossed, raised, or printed lettering.

10. A combination lock handle as described in claim 9, characterized in that: A positioning mark (21) is provided on the lock panel (22); the positioning mark (21) is used to locate the digital mark.

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